@article{10_21136_MB_1995_126096,
     author = {Knofl{\'\i}\v{c}ek, Franti\v{s}ek},
     title = {A combinatorial approach to the known projective planes of order nine},
     journal = {Mathematica Bohemica},
     pages = {347--366},
     publisher = {mathdoc},
     volume = {120},
     number = {4},
     year = {1995},
     doi = {10.21136/MB.1995.126096},
     mrnumber = {1415083},
     zbl = {0847.51005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/MB.1995.126096/}
}